public void GetDHConfigAsync(int version, int randomLength, Action <TLMessagesDHConfig> callback, Action <TLRPCError> faultCallback = null)
{
var obj = new TLMessagesGetDHConfig {
Version = version, RandomLength = randomLength
};
const string caption = "messages.getDhConfig";
SendInformativeMessage(caption, obj, callback, faultCallback);
}
private async void OnAnswerRequested(VoipPhoneCall sender, CallAnswerEventArgs args)
{
if (_phoneCall != null)
{
await UpdateStateAsync(TLPhoneCallState.ExchangingKeys);
var reqConfig = new TLMessagesGetDHConfig {
Version = 0, RandomLength = 256
};
var config = await SendRequestAsync <TLMessagesDHConfig>("messages.getDhConfig", reqConfig);
if (config.IsSucceeded)
{
var dh = config.Result;
if (!TLUtils.CheckPrime(dh.P, dh.G))
{
return;
}
var salt = new byte[256];
var secureRandom = new SecureRandom();
secureRandom.NextBytes(salt);
secretP = dh.P;
a_or_b = salt;
var g_b = MTProtoService.GetGB(salt, dh.G, dh.P);
var request = new TLPhoneAcceptCall
{
GB = g_b,
Peer = _phoneCall.ToInputPhoneCall(),
Protocol = new TLPhoneCallProtocol
{
IsUdpP2p = true,
IsUdpReflector = true,
MinLayer = Telegram.Api.Constants.CallsMinLayer,
MaxLayer = Telegram.Api.Constants.CallsMaxLayer,
}
};
var response = await SendRequestAsync <TLPhonePhoneCall>("phone.acceptCall", request);
if (response.IsSucceeded)
{
_systemCall.NotifyCallActive();
Handle(new TLUpdatePhoneCall {
PhoneCall = response.Result.PhoneCall
});
}
}
}
}
internal async void OutgoingCall(int userId, long accessHash)
{
await UpdateStateAsync(TLPhoneCallState.Requesting);
var coordinator = VoipCallCoordinator.GetDefault();
var call = coordinator.RequestNewOutgoingCall("Unigram", _user.FullName, "Unigram", VoipPhoneCallMedia.Audio);
_outgoing = true;
_systemCall = call;
_systemCall.AnswerRequested += OnAnswerRequested;
_systemCall.RejectRequested += OnRejectRequested;
var reqConfig = new TLMessagesGetDHConfig {
Version = 0, RandomLength = 256
};
var config = await SendRequestAsync <TLMessagesDHConfig>("messages.getDhConfig", reqConfig);
if (config.IsSucceeded)
{
var dh = config.Result;
if (!TLUtils.CheckPrime(dh.P, dh.G))
{
return;
}
var salt = new byte[256];
var secureRandom = new SecureRandom();
secureRandom.NextBytes(salt);
secretP = dh.P;
a_or_b = salt;
g_a = MTProtoService.GetGB(salt, dh.G, dh.P);
var request = new TLPhoneRequestCall
{
UserId = new TLInputUser {
UserId = userId, AccessHash = accessHash
},
RandomId = TLInt.Random(),
GAHash = Utils.ComputeSHA256(g_a),
Protocol = new TLPhoneCallProtocol
{
IsUdpP2p = true,
IsUdpReflector = true,
MinLayer = Telegram.Api.Constants.CallsMinLayer,
MaxLayer = Telegram.Api.Constants.CallsMaxLayer,
}
};
var response = await SendRequestAsync <TLPhonePhoneCall>("phone.requestCall", request);
if (response.IsSucceeded)
{
var update = new TLUpdatePhoneCall {
PhoneCall = response.Result.PhoneCall
};
Handle(update);
await UpdateStateAsync(TLPhoneCallState.Waiting);
}
else
{
Debugger.Break();
}
}
}
